A kind of auxiliary cervical dilatation device

Abstract

The invention relates to an auxiliary cervical dilation device, which comprises an inner guide tube and an outer guide tube. A cervical dilation balloon is arranged at the head end of the outer guide tube, and a vulva limit balloon is arranged near the tail end. The tube wall of the outer guide tube is There are two water injection channels connected to the cervical dilatation balloon and the vulva limit balloon respectively. The water injection port I and the water injection port II are respectively connected to the two water injection channels on the tube wall. The outer side of the inner guide tube is close to its The head end is provided with a uterine limit balloon, the tail end of the inner guide tube is provided with a water injection port III, the tail end of the inner guide tube protrudes from the outer guide tube and is connected to the baffle plate, and the tail end of the inner guide tube is covered with a A compression spring pushes the inner guide tube back. The auxiliary cervical dilation device of the present invention can effectively promote the ripening and dilation of the cervix without damaging the cervix, and can accurately limit the uterine expansion balloon to the cervix through the vulva limiting balloon and the uterine limiting balloon, improving the The expansion effect is guaranteed, and it is convenient and safe to use.

Description

technical field [0001] The invention relates to the technical field of medical auxiliary devices, in particular to an auxiliary cervical dilation device. Background technique [0002] Induction of labor refers to the termination of pregnancy by artificially inducing uterine contraction and cervical dilatation to expel the fetus and its appendages from the uterus due to reasons of the mother or the fetus. At present, the main methods of labor induction include rivanol induction and water bag induction. The success rate of induction of labor using rivanol is high, safe and reliable, but the disadvantage of this method is that a small number of pregnant women have fever during induction of labor; another disadvantage is the residual decidua, so that most pregnant women need curettage after induction of labor. The water bag induction method is used to inject normal saline into the water bag, and the uterus will automatically contract after the water bag is expanded by external ...

AI Technical Summary

Problems solved by technology

The success rate of induction of labor using rivanol is high, safe and reliable, but the disadvantage of this method is that a small number of pregnant women have fever during induction of labor; another disadvantage is that decidua remains, so that most pregnant women need curettage after induction of labor

The water bag induction method is used to inject normal saline into the water bag, and the uterus will automatically contract after the water bag is expanded by external force. At the same time, the water bag can compress the lower uterine segment to stop bleeding, but it cannot provide the mechanical expansion of the cervix required for labor induction, and the expansion of the cervix Determining the time of labor induction

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